std::strncmp

From Cppreference

C++ Standard Library
Language Utilities library Strings library Containers library Algorithms library Iterators library Numerics library Input/output library Localizations library Regular expressions library (C++0x feature) Atomic operations library (C++0x feature) Thread support library (C++0x feature)
Strings library
Narrow character strings Wide character strings Classes basic_string char_traits Functions getline stoi stol stoll stoul stoull (C++0x) (C++0x) (C++0x) (C++0x) (C++0x) stof stod stold (C++0x) (C++0x) (C++0x) to_string (C++0x) to_wstring (C++0x)
Narrow null-terminated strings
Functions Character manipulation isalnum isalpha islower isupper isdigit isxdigit iscntrl isgraph isspace isprint ispunct tolower toupper Conversions to numeric formats atof atoi strtol strtoul strtof String manipulation strcpy strncpy strcat strncat strxfrm String examination strlen strcmp strncmp strcoll strchr strrchr strspn strcspn strpbrk strstr strtok Memory manipulation memchr memcmp memset memcpy memmove Miscellaneous strerror

Defined in header <cstring>
​int strncmp( const char *lhs, const char *rhs, size_t count );​

Compares at most count characters of two null-terminated character strings. The comparison is done lexicographically.

Contents 1 Parameters 2 Return value 3 Example 4 See also

Parameters

lhs, rhs	-	pointers to the null-terminated character strings to compare
count	-	maximum number of characters to compare

Return value

negative value if lhs is less than rhs.

​0​ if lhs is equal to rhs.

positive value if lhs is greater than rhs.

Example

This section is incomplete

See also

strcmp	compares two strings (function)
memcmp	compares two buffers (function)
strcoll	compares two strings in accordance to the current locale (function)